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Photosynthesis

Only green pa...

Question

Only green parts of a leaf give iodine test positive in the presence of ___.

A

any carbohydrate

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B

protein

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C

starch

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D

both starch and protein

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Solution

The correct option is C
starch

Green parts of a leaf give iodine test positive in the presence of starch, thus proving chlorophyll is necessary for photosynthesis.

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